☃️Howdy-ho Devfolks!!! GDSC MESCOE is elated to have you get started with Android study jam using Kotlin the language of the future at our campus.略 Become an android developer. Learn how to build Android apps and the basics of kotlin with the GDSC MESCOE Team. Date - 15 and 16 December, 2021 Time - 2pm to 4 pm  Venue - Room No. 309 ❄️This is just a start though, after which there will be plenty of opportunities.  Key perks - ❄️ Make an app of your own ❄️ Earn badges from Google ❄️ Get to meet other developers like you and build contacts ❄️ Hands-on session from experienced android developers. ❄️ Fun games, prizes, Kahoot, and whatnot!!!略

1. This work is licensed under the Apache 2.0 License
Kotlin Programming Language
Welcome to Android
Study Jams
Wi-Fi : Super1@dmin

2. This work is licensed under the Apache 2.0 License

3. Comments
Print Statement
The println() or print() function is used to output values/text.
SYNTAX :- print(“Welcome”)
println(“To The ASJ”)
Comments can be used to explain Kotlin code, and to make it more readable. It can also be used
to prevent execution when testing alternative code.
SYNTAX :- // This is how you write single line comments.
/* This is how you write multi-line comments. */

4. Variables
The general rule for Kotlin variables are:
● Names can contain letters, digits, underscores, and dollar signs
● Names should start with a letter
● Names can also begin with $ and _
● Names are case sensitive ("myVar" and "myvar" are different variables)
● Names should start with a lowercase letter and it cannot contain whitespace
● Reserved words (like Kotlin keywords, such as var or String) cannot be used as names
Variables are containers for storing data values.
SYNTAX :- var variableName = value
val variableName = value

5. Data Types
Different Types of data types are:
● Int (For Numbers)
● Double (For Decimal Numbers)
● Char (For Letters)
● Boolean (For True Or False)
● String (For a series of Characters)
myNum = 5
myDoubleNum = 10.
myLetter = ‘K’
myBoolean = true
myString = “Hello”

6. Operators
Booleans
SYNTAX :- val isKotlinFun : true
val isFishTasty : false
● Arithmetic Operators : + , - , * , / , % , ++ , –
● Assignment Operators : =
● Comparison Operators : == , != , > , < , >= , <=
● Logical Operators : && , || , !

7. Conditional Statements
● Use if to specify a block of code to be executed, if a specified condition
is true
● Use else to specify a block of code to be executed, if the same
condition is false
● Use else if to specify a new condition to test, if the first condition is
false
● Use when to specify many alternative blocks of code to be executed
SYNTAX :- if(condition){
// if condition is true execute
}

8. Loops
A Do While loop will execute the code block once, before checking the
condition is true, then it will repeat the loop until it’s true.
SYNTAX :- do{
Code block to be executed
}
while(condition)
A While loop loops through a code as long as a specified condition is true.
SYNTAX :- while(condition){
Code block to be executed
}

9. Loops
A For loop loops through a array, ranges and other things that contains
a specific number of elements.
SYNTAX :- for(condition){
Code block to be executed
}
Ranges
Ranges are a special way to represent a sequence of numbers.
We use “..” operator to use a range

10. Arrays
● Array Slicing Operations
● Length/Size
● Loop through a Array
Arrays are used to store multiple values in a single variable, instead
of creating separate variables for each value.
SYNTAX :- val cars = arrayOf(“Ford”,”BMW”,”Volvo”)

11. Function
A function is a block of code which only runs when it is called. You
can pass data, known as parameters, into a function.
SYNTAX :- fun functionName(){
//Code to be executed
}
Fun functionName():Int{
//Code to be executed
}

12. BREAK

13. Class and Object

14. This work is licensed under the Apache 2.0 License
QnA Session